I have had some flats on my P-bass for several years now-I want to get another set; but I don't know the brand. They have red wraps on the end. Anybody know?
What's the tension like? If the strings are a really shiny silver, and have about the same tension as rounds, then they are probably Rotosound Monel Flats. If they are more of a grey, and have a smaller diameter E string (.089), they are probably TI Jazz Flats. I love them both, and just ordered a set of Roto Monel flats for my Jazz Bass, while I've got TIs on my '89 Curbow 4 string fretless. You really can't go wrong with either, but they each certainly have their own signature feel and sound.
The TI Jazz Rounds have an .089 E, The TI Flats have a .100 E. Another thing that might tell you if they are TI Flats is that TI Flats appear to have a little space between the windings on the E & A strings and not on the D & G strings.
The only green wraps I know of are on the TI Jazz Rounds, but I don't have experience with a lot of different string brands so there could be many others for all I know.
Blue could be Ernie Ball or LaBella. Green could be Fender or Pyramid. Pyramids have green silk at both ends, Fenders have green silk at the ball end. Speaking strictly of flatwounds, of course.
I'm not sure what other brands are like, but if they have red silk on the wrapping part AND down near the bridge then they're probably Rotosounds. I'm almost sure they are, unless there are any other string makers also have the silk down by the bridge that I don't know about.